<!--
 * @Author: your name
 * @Date: 2021-12-16 16:29:45
 * @LastEditTime: 2022-01-01 11:53:01
 * @LastEditors: Please set LastEditors
 * @Description: 打开koroFileHeader查看配置 进行设置: https://github.com/OBKoro1/koro1FileHeader/wiki/%E9%85%8D%E7%BD%AE
 * @FilePath: \vue_test\src\components\Category.vue
-->
<template>
  <div>
    <h1>当前求和为：{{ sum }}</h1>
    <h3>当前求和放大10倍为：{{ bigSum }}</h3>
    <h3>我在{{ school }}，学习{{ subject }}</h3>
    <select v-model.number="n">
      <option value="1">1</option>
      <option value="2">2</option>
      <option value="3">3</option>
    </select>
    <button @click="increment(n)">+</button>
    <button @click="decrement(n)">-</button>
    <button @click="incrementOdd(n)">当前求和为奇数再加</button>
    <button @click="incrementWait(n)">等一等再加</button>
  </div>
</template>

<script>
import { mapActions, mapMutations, mapState } from "vuex";
import { mapGetters } from "vuex";
export default {
  name: "Count",
  data() {
    return {
      n: 1, //用户选择的数字
      //sum: 0, //当前的和
    };
  },
  methods: {
    //程序员亲自写方法
    /*  increment() {
      this.$store.commit("JIA", this.n);
    },
    decrement() {
      this.$store.commit("JIAN", this.n);
    },
 */
    //借助mapMutations生成对应的方法，方法中会调用commit去联系mutations(对象写法)
    ...mapMutations({ increment: "JIA", decrement: "JIAN" }), //将n传到指令语法中

    //借助mapMutations生成对应的方法，方法中会调用commit去联系mutations(数组写法)
    //...mapMutations(["JIA", "JIAN"]),

    /* *************************************************** */
    /*  incrementOdd() {
      this.$store.dispatch("jiaOdd", this.n);
    },
    incrementWait() {
      //定时器
      setTimeout(() => {
        this.$store.dispatch("jiaWait", this.n);
      }, 500);
    }, */

    //借助mapActions生成对应的方法，方法中会调用dispatch去联系actions(对象写法)
    ...mapActions({ incrementOdd: "jiaOdd", incrementWait: "jiaWait" }),

    //借助mapActions生成对应的方法，方法中会调用dispatch去联系actions(数组写法)
    //...mapActions(["jiaOdd","jiaWait"]),
  },
  computed: {
    //借助mapState生成计算属性，从state中读取数据（对象写法）
    //...mapState({sum:"sum",school:"school",subject:"subject"}),

    //借助mapState生成计算属性，从state中读取数据（数组写法，计算属性名和读取的名必须是一致的）
    ...mapState(["sum", "school", "subject"]),

    //借助mapGetters生成计算属性，从getters中读取数据（对象写法）
    //...mapGetters({ bigSum: "bigSum" }),

    //借助mapGetters生成计算属性，从getters中读取数据（数组写法，计算属性名和读取的名必须是一致的）
    ...mapGetters(["bigSum"]),
  },
  mounted() {
    const x = mapState({ sum: "sum", school: "school", subject: "subject" });
    console.log(x);
  },
};
</script>

<style>
button {
  margin-left: 5px;
}
</style>
